Fundamentals of Nursing · Introduction to the Nursing Profession: Evolution, Theories, and Practice
Selected Nursing Theorist
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In 30 seconds
Nursing theory is built by people — nurses who looked at their practice and asked "why?" and "how should this work?" This topic profiles the theorists most commonly taught in nursing fundamentals: who they were, when they wrote, what their key ideas mean in plain language, and how they show up in everyday care. Studying theorists is more than memorizing name–theory pairs — learn who each was, what they wrote, and how the theory is critiqued.
The profiles are educational summaries; each theorist's original works are far richer. The goal is a working familiarity: recognize each theory in practice and answer exam questions.
Why this matters
Theorists give nursing its vocabulary and justification. When you can say why you teach self-care (Orem), why the relationship matters (Peplau), or why culture shapes care (Leininger), you practice deliberately. Exams test theorist recognition and application, and clinical teams often share a frame of reference — a unit organized around Watson's caring model, a discharge pathway built on Orem's framework. The theorists also build professional identity: nurses who created knowledge from practice. Each theory's limits remind you to apply frameworks with cultural humility and to check the evidence.
The college version
Core Concepts
Florence Nightingale (1820–1910) — Environmental Theory
Nightingale wrote the first nursing theory in Notes on Nursing (1859–1860), based on her Crimean War experience: the nurse puts the person in the best condition for nature to heal by controlling the environment — air, light, warmth, cleanliness, quiet, nutrition — and observing responses. Her sanitation and statistics created modern infection control. Critique: it focuses on the physical environment, saying little about the relationship — yet every nurse who adjusts a room for comfort practices it.
Virginia Henderson (1897–1996) — Definition of nursing and 14 basic needs
Henderson defined nursing as helping the person — sick or well — perform activities that contribute to health, recovery, or a peaceful death, which they would do unaided if they had the strength, will, or knowledge — helping them gain independence as quickly as possible. She organized care around 14 basic human needs — from breathing, eating, and eliminating to moving, sleeping, dressing, staying clean, avoiding dangers, communicating, worshiping, working, playing, and learning. Her view of the nurse as substitute, helper, or partner until independence is restored is among the most widely used framings of nursing. Critique: the needs list reflects one cultural moment.
Dorothea Orem (1914–2007) — Self-Care Deficit Nursing Theory
Orem's theory (developed from the 1950s through her 1971 book Nursing: Concepts of Practice) starts simply: people generally care for themselves, and health requires meeting self-care demands. When self-care agency (ability to perform self-care) falls short of the therapeutic self-care demand (what the situation requires), a Self-care deficit Orem: the gap between what self-care a situation demands and what the person can do Full entry → exists — and that deficit is why nursing is needed. The nurse chooses among three Nursing systems Orem's three ways nurses act: wholly compensatory, partly compensatory, supportive-educative Full entry →: wholly compensatory (doing everything), partly compensatory (sharing the work), or supportive-educative (teaching and supporting). It appears everywhere in discharge teaching and home care. Critique: dense vocabulary, and it presumes a person who wants to self-care.
Hildegard Peplau (1909–1999) — Theory of Interpersonal Relations
Peplau, a psychiatric nurse, published Interpersonal relations Peplau: nursing as a therapeutic relationship with phases (orientation, identification, exploitation, resolution) Full entry → in Nursing in 1952, reframing nursing as a therapeutic interpersonal process with phases: orientation (getting to know each other and the problem), identification (the patient identifies with the nurse as helpful), exploitation (using the relationship and resources to grow), and resolution (ending the relationship as the patient becomes independent). Her nurse roles — stranger, resource person, teacher, leader, counselor, surrogate — put the relationship itself at nursing's center. Critique: developed in psychiatric settings, it requires an active patient.
Sister Callista Roy (b. 1939) — Adaptation Model
Roy (first publishing in the 1970s) sees the person as an adaptive system responding to stimuli — focal (immediate), contextual (background), residual (beliefs, attitudes) — through four modes: physiologic-physical, self-concept, role function, interdependence. Health is successful adaptation; illness is maladaptation. The nurse assesses adaptive responses and intervenes to promote adaptation — e.g., helping a person adjust to a changed self-image after a new diagnosis. Critique: broad and abstract, and "adaptation" may not fit every person's values or culture.
Jean Watson (b. 1940) — Theory of Human Caring
Watson's theory (1979; later revisions) places caring at nursing's center: nursing is a human science of caring, not a set of technical tasks. Her carative factors — later clinical caritas processes — include loving-kindness, authentic presence, trusting relationships, and supporting the person's beliefs. Care is transpersonal, honoring mind, body, and spirit, and the caring moment has its own healing power. Critique: concepts are hard to measure, though Watson's answer is that caring is the outcome.
Madeleine Leininger (1925–2012) — Culture Care Theory
Leininger founded Transcultural nursing Leininger: care that is shaped to fit a person's culture Full entry → with her Culture Care Diversity and Universality Theory (1978; expanded 1991): care is the essence of nursing, but what counts as caring differs by culture. Her Sunrise Model depicts the factors — worldview, religion, social structure, economics, politics, environment — shaping culturally patterned care. Nurses act through three modes: cultural care preservation/maintenance, accommodation/negotiation (adjust care to cultural patterns), and repatterning/restructuring (change harmful practices with the person). Critique: complex, and it requires genuine curiosity, not stereotyping.
Other theorists in brief
- Imogene King (1923–2007) — Goal Attainment Theory: nursing happens within interacting personal, interpersonal, and social systems; nurse and patient mutually set goals.
- Betty Neuman (1924–2022) — Neuman Systems Model: the person is an open system with lines of defense and resistance against stressors; nursing strengthens those lines through prevention levels.
- Patricia Benner (b. 1942) — Novice to Expert: nurses develop through five stages (novice → advanced beginner → competent → proficient → expert) — a theory of how nurses develop, not what nursing is.
- Ida Jean Orlando (1926–2007): the deliberative nursing process — observe the patient's behavior, check your reactions, explore immediate needs — shaped the nursing process.
Common Confusions
| Do Not Confuse | With | Difference |
|---|---|---|
| Orem and Henderson both listing "needs" | Orem's self-care deficit vs. Henderson's 14 basic needs | Henderson defines what people need for health/independence; Orem explains the deficit that triggers nursing |
| Roy and Neuman both being "systems models" | Roy's adaptation to stimuli vs. Neuman's lines of defense against stressors | Roy focuses on adaptive modes; Neuman focuses on prevention levels and system stability |
| Nightingale's theory being obsolete | Her environmental focus | Still visible in infection control and healing environments, though nursing science extends far beyond it |
| Benner's novice-to-expert with a theory of nursing's essence | It is a theory of skill development | It explains how nurses grow, not what nursing fundamentally is |

Eli explains
The same idea, in plain words
Explain it like I’m 10
Long ago, different nurses wrote down their best ideas about helping people, like different "recipes" for nursing — clean rooms, self-care, caring relationships, cultural respect. Today's nurses learn all the recipes and pick the one that fits each person best.
Worked example
A person with a new diagnosis of type 2 diabetes is being discharged and must learn to check blood glucose and adjust meals. Using Orem's lens, the nurse assesses what self-care the person can already perform, where the deficit lies, and chooses a supportive-educative system — teaching, demonstrating, and letting the person practice until independent. Using Peplau's lens, the nurse sees the same visit as a relationship phase: orientation explores what the diagnosis means; identification and exploitation let the person use teaching and resources to grow; resolution leaves the person managing independently. Both teach the same skill — one organizes work around self-care deficits, the other around the relationship's phases. Neither is wrong; the theories are different maps of the same territory.
Key takeaways
- Nightingale = environment (air, light, cleanliness, quiet, nutrition) — the first nursing theory, 1860s.
- Henderson = definition of nursing + 14 basic needs, goal of independence; nurse as substitute/helper/partner.
- Orem = self-care deficit: nursing is needed when self-care ability < self-care demand; three nursing systems.
- Peplau = interpersonal relations: orientation → identification → exploitation → resolution; the relationship is the therapy.
- Roy = adaptation: person adapts to focal/contextual/residual stimuli in four modes.
- Watson = human caring: transpersonal caring, carative factors/caritas processes; mind–body–spirit.
- Leininger = culture care: three modes — preservation, accommodation, repatterning; care must fit the person's culture.
- Exam tip: independence/teaching → Henderson/Orem; relationship/phases → Peplau; culture → Leininger; adaptation → Roy; environment → Nightingale; caring presence → Watson.
Check yourself
5 review questions from the chapter. Try each one, then open the answer.
Match the concept to the theorist: environment; self-care deficit; four phases of relationship; adaptation modes; culture care modes.
Show answer
Environment — Nightingale; self-care deficit — Orem; four phases — Peplau; adaptation modes — Roy; culture care modes — Leininger.
What is Orem's explanation for why nursing is needed?
Show answer
Nursing is needed when a self-care deficit exists — when the person's self-care ability falls below what their situation demands.
List Peplau's four phases of the nurse–patient relationship.
Show answer
Orientation, identification, exploitation, resolution.
What are Leininger's three modes of culturally congruent care?
Show answer
Cultural care preservation/maintenance, accommodation/negotiation, and repatterning/restructuring.
In a scenario about helping a person cope with a changed self-image after surgery, which lens fits best, and why?
Show answer
Roy's Adaptation Model — the surgery is a focal stimulus; the nurse would assess adaptation in the self-concept mode (how the person sees themselves after the change) and intervene to promote adaptive responses.
Study tools & related lessonsKey vocabulary · Related
Key vocabulary
- Environmental Theory
- Nightingale: the nurse manipulates the environment so nature can heal
- Self-care deficit
- Orem: the gap between what self-care a situation demands and what the person can do
- Nursing systems
- Orem's three ways nurses act: wholly compensatory, partly compensatory, supportive-educative
- Interpersonal relations
- Peplau: nursing as a therapeutic relationship with phases (orientation, identification, exploitation, resolution)
- Adaptation model
- Roy: the person adapts to stimuli through four modes; health = successful adaptation
- Transcultural nursing
- Leininger: care that is shaped to fit a person's culture
Sources & references
This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.
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